Microsoft MSN Messenger Service 1.0 through 4.6 allows remote attackers to cause a denial of service (crash) via an invite request that contains hex-encoded spaces (%20) in the Invitation-Cookie field.
Microsoft MSN Messenger 9.0 and Internet Explorer 6.0 allows remote attackers to cause a denial of service (crash) via an image with an ICC Profile with a large Tag Count.
Buffer overflow in Microsoft MSN Messenger Service 1.0 through 4.6 allows remote attackers to cause a denial of service (crash) via a long FN (font) argument in the message header.
MSN Messenger Service 3.6, and possibly other versions, uses weak authentication when exchanging messages between clients, which allows remote attackers to spoof messages from other users.
Microsoft MSN Messenger allows remote attackers to use Javascript that references an ActiveX object to obtain sensitive information such as display names and web site navigation, and possibly more when the user is connected to certain Microsoft sites (or DNS-spoofed sites).
Buffer overflow in Microsoft MSN Chat ActiveX Control, as used in MSN Messenger 4.5 and 4.6, and Exchange Instant Messenger 4.5 and 4.6, allows remote attackers to execute arbitrary code via a long ResDLL parameter in the MSNChat OCX.
Multiple buffer overflows in libpng 1.2.5 and earlier, as used in multiple products, allow remote attackers to execute arbitrary code via malformed PNG images in which (1) the pnghandletRNS function does not properly validate the length of transparency chunk (tRNS) data, or the (2) pnghandlesBIT or (3) pnghandlehIST functions do not perform sufficient bounds checking.
Microsoft MSN Messenger 6.0 and 6.1 does not properly handle certain requests, which allows remote attackers to read arbitrary files.
GIF file validation error in MSN Messenger 6.2 allows remote attackers in a user's contact list to execute arbitrary code via a GIF image with an improper height and width.
The "Remember my Password" feature in MSN Messenger 7.5 stores passwords in an encrypted format under the HKEYCURRENTUSER\Software\Microsoft\IdentityCRL\Creds registry key, which might allow local users to obtain the original passwords via a program that calls CryptUnprotectData, as demonstrated by the "MSN Password Recovery.exe" program. NOTE: it could be argued that local-only password recovery is inherently insecure because the decryption methods and keys must be stored somewhere on the local system, and are thus inherently accessible with varying degrees of effort. Perhaps this issue should not be included in CVE.
Microsoft MSN Messenger 4.7 on Windows XP allows remote attackers to cause a denial of service (resource consumption) via a flood of SIP INVITE requests to the port specified for voice conversation.
Heap-based buffer overflow in Microsoft MSN Messenger 6.2, 7.0, and 7.5, and Live Messenger 8.0 allows user-assisted remote attackers to execute arbitrary code via unspecified vectors involving video conversation handling in Web Cam and video chat sessions.
Unspecified vulnerability in Microsoft Office Communications Server (OCS), Office Communicator, and Windows Live Messenger allows remote attackers to cause a denial of service (crash) via a crafted Real-time Transport Control Protocol (RTCP) receiver report packet.
Directory traversal vulnerability in the Marcelo Costa FileServer component 1.0 for Microsoft Windows Live Messenger and Messenger Plus! Live (MPL) allows remote authenticated users to list arbitrary directories and read arbitrary files via a .. (dot dot) in a pathname.
A certain ActiveX control in msgsc.14.0.8089.726.dll in Microsoft Windows Live Messenger 2009 build 14.0.8089.726 on Windows Vista and Windows 7 allows remote attackers to cause a denial of service (msnmsgr.exe crash) by calling the ViewProfile method with a crafted argument during an MSN Messenger session.